Which muscle closes the eye?
A. Levator palpebrae
B. Orbicularis oris
C. Orbicularis oculi
D. Zygomaticus minor
E. Depressor anguli oris
C. Orbicularis oculi
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Match the enzyme or hormone with the organ that produces it.A. Salivary glandsB. StomachC. LiverD. Small intestineE. PancreasCholecystokinin (CCK)
Fill in the blank(s) with the appropriate word(s).
Antibody diversity can be explained by ________.
A. antibody-gene recombinations and mutations B. mutation of pathogens C. the fact that many different genes encode for the different antibody chains D. clonal production of plasma cells
In goat terminology, which of the following describes the clip?
A) fine undercoat B) hair harvested from one animal in one shearing C) appendage suspended from the chin on the head D) portion of meat
Which correctly describes the structure of an atom?
A. There are always the same number of protons and neutrons. B. There are always the same number of protons and electrons. C. There are always the same number of neutrons and electrons. D. The number of protons, neutrons, and electrons is always the same E. There are never the same number of neutrons and protons.